Finding the Fourth Proportional to 17,078.24, 25,602.20 and 8,188.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,078.24 : 25,602.20 = 8,188.72 : x
2. Step 2: Convert to fraction form
   17,078.24/25,602.20 = 8,188.72/x
3. Step 3: Cross multiply
   17,078.24x = 25,602.20 × 8,188.72
4. Step 4: Simplify right side
   17,078.24x = 209,649,247.18
5. Step 5: Solve for x
   x = 209,649,247.18/17,078.24
6. Step 6: Final answer
   x = 12,275.81